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Thermal Sciences 2000. Proceedings of the International Thermal Science Seminar. Volume 2
June, 11-14, 2000, Bled, Slovenia

DOI: 10.1615/ICHMT.2000.TherSieProcVol2


ISBN Print: 978-961-6353-27-4

Abstract of "USE OF SCREW MACHINES AS A THROTTLE VALVE REPLACEMENT IN REFRIGERATION PLANTS"

page 163
DOI: 10.1615/ICHMT.2000.TherSieProcVol2.760
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RESUMO

Component efficiencies of vapour compression refrigerant plants approach today upper limits. Losses due to throttling within the cycle become more significant, especially if new refrigerants are used. Efforts are placed to produce two-phase expanders, which could be used to replace the throttle valve and recover power from the loss of the throttling process. Power recovered from the two-phase expansion would then be used to drive either the main compressor or electric generator or another compressor to recompress directly part of the vapour formed during expansion.

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